Improved apparatus for washing ores



P. SGHEUREMAN. APPARATUS POR WASHING GRES.l

UNITED .STATES PATENT OFFICE,

PHILIP s cBEuEnMAN, `or HANCOCK, MIoHIGAN.

IMPaovI-:Dv APPARATUS Foa WASHING' oni-2s.,

`Specification forming part of Letters Patent lla-40,950, dated .December 15, 1863'.

improved Apparatus or Device'for WVashing.

Metallic Substances from Ores; andv I do hereby declare that the following'is a full, clear, and exact description-of the same, reference'bein g had to the accompanying drawings, making a part of this specification, in which- 4Fipmre lis a longitudinal vertical section of my invention, taken in the line a: x, Fig.2; Fig. 2, a transverse vertical section of the same, taken in the line y y, Fig. 1..

Similar letters ot' reference indicate corresponding parts in the two tlgures.

This invention relates to certain improvements in that class of ore-Washers in which water is forced u p-throu gh screens on which the ore or pulp is discharged from the stamp-mill.

The object of the in veution is to obtain an ore-washer ofthe class specified which will be more compact than those previously devised, more sim ple in its construction, as well as more efficient in its operation.

To this end the inventionlconsists, rst, in an improved devicel for imparting motion to the plunger of an ore-washer of the construc- -tion specified.

The invention consists, second', in the cmployment or use ot' two Water compartments or reservoirs, provided each with a screen, and using, in connect-ion with the two reservoirs and screens, a single plunger, the latter being arranged with the former in such a manner'as to be capable of forcing the water ot' both reservoirs simultaneously through both screens and washing the ore thereon, thereby rendering the device very compact and efficient in its operation.

The invention consists, third, in a novel way of discharging the metallic substances from the screensto wit., by means of horizontal tubes, placed one over each screen, and provided 'with openings in their under sides in quite closeproximity to the screens to receive the metallic substances, the tubes communicatingvith chambers, into which the metallic substances are conveyed by the tubes and drawn oi from time to time through faucets.

To, enable those skilled inthe art to fully understand 'and construct my invention, I will proceed to describe it.

A A represent two separate water chamv bers vor reservoirs, which are placed side by side, and have each a double inclined bottom. a al; and B isareetangular box, which is placed directly over the junction of the two reservoirs and projects an equal distance over each,

as shown clearly in Fig. 1. Within this box' plunger has a vertical strip, H, attached tol it, and extendingits whole length. This strip H is tltted and works between upright plates l I, attached to the adjoining ends of the two bottoms of the reservoirs, and said upright plates, in connection with the plunger-strlp l H, form a cut-ott' or partition between the two reservoirs, and one which admits of the free working ot the plunger. The plunger C, it

will be seen, projects an equal distance over each reservoir, and in the upper part of each reservoir there is fitted a horizontal screen, J. Directly over these screens at one endthere are tltted short tubes K, one over each, and in the under sidesofthese tubes near their back ends there are made openings b, one in each, said openings being in quite close proximity to the screens, as shown in Fig. 2. The tubes K communicate at their front ends with chambers L made in the sides of the reservoirs, each chamber having a faucet, c, at its lower end. A Each reservoir A is supplied with Water through a separate pipe, d, and in the bottom of each reservoir at the angle of the two inclined surfaces there are made openings e. (Show-n in Fig. 1.)

The v poration is as as follows: The pulp or'ore from the stamp-mill is admitted upon the screens at the ends opposite to those where the tubes K are placed, the pulp or "ore therefore passing over the entire length of the screens. The shaft F being rotated, the plunger C is actuated,.and the water in the reservoirs A4 intermittingly forced up `into the reservoirs A, and pass with the ow of water through the reservoirs out through the openings e in the bottoms ofthe reservoirs, (indicated by the arrows 1.)'. `Thus it will be seen that two reservoirs and two screens are used with a single plunger, and lthe latter arranged in close proximity to the screens,lthe whole forming a very compact and efficient machine, while the reservoirs being kept free from sediment, the water is always pure and the screens prevented from choking up or clogging, and the separation of the metallic substances from the ore rendered farmore thorough than it otherwise would be.

I am aware that the principle of washing ores by.mean's of plungers forcing water up through screens upon which the ore is placed is not new,"and I do not therefore claim nove'lty therein except in the connection or combination 'herein specitied. I am also awarethat it is not new to separate the heavier from the lighterlayer of grains and constantly draw off the heavier by means of a tube placed at a limited height above the top ofthe screen, as described in Letters Patent granted n the 18th of March, 1863, to W. Schell.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l'.` The combination of the shaft F, cam E, and yoke D with the' plunger O of an orewasher, substantially as described.

2. The two separatereservoirs A A, provided withscreens J J, in connection with a single plunger, G, arranged substantially as shown, to admit -of the plunger forcing the wa ,ter'simultaneously through both screens, for thep'u-rpose speci'ed.

3, The *combination of the strip H and plates I I with the 4plun ger C, and reservoirs A A, operatinga'sA 'a guide to th e said plunger, and a partition between the reservoirs, all as herein shown and described.

4. TheV tubes K, provided with openings b in their under sides, in close proximity to the screens, and communicating with chambers L at the end of the screens opposite to the ends on which the oreor pulp is admitted, substantially as and for the purpose set forth.

' PHILIP SCHEUERMAN. Witnesses:

Josera WIEDERMEYER,

GUsfrAs SoHULzE. 

